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What's That Green Stuff? Seniors Complete Their Independent Biology Experiments.

January 07, 2019
By Karen Mattick

Initial phytoplankton culture for a senior’s Biology project - Karen Mattick photoOf all the experiments running in the Life Science classroom during the seniors’ biology experiments, the bubbling beakers filled with something vividly green received the most attention. That green stuff is Nannochloropsis phytoplankton. The experiment investigated the effects of salinity on the photosynthesis rate of these microscopic plants. The student made use of a dissolved oxygen sensor from our growing collection of electronic sensors in order to measure changing photosynthesis rates.

This experiment is one example of the fifteen student-designed investigations created this year as part of the International Baccalaureate (IB) Diploma Program’s Internal Assessments. Read more >>>

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